What do you guys do with your engine if you dont plan on running them for a few months? I've never used after run oil. Would it be better to just start them up for a few minutes every few weeks to keep them fresh? Or just use some after run oil,and if so would Marvel mistery oil work well....I heard some say its great? I probably wont run my engines till next spring.

And I know I could probably do searches and spend 5 hours reading through 500 old posts on this topic,but I dont feel like it.....plus this may be informative for other beginners that havent thought about it yet.